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  4. The osmotic pressure of blood is 7.47 bar at 300 K. To inject glucose to a patient intravenously, it has to be isotonic with blood. The concentration of glucose solution in gL -1 is (Molar mass of glucose =180 g mol -1 R =0.083 L bar K-1 mol -1 ) (Nearest integer)

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Q. The osmotic pressure of blood is $7.47$ bar at $300 \,K$. To inject glucose to a patient intravenously, it has to be isotonic with blood. The concentration of glucose solution in $gL ^{-1}$ is____ (Molar mass of glucose $=180 \,g\, mol ^{-1}$
$R =0.083 \,L bar \,K^{-1}\,mol ^{-1}$ ) (Nearest integer)

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Solution:

$\pi= C . R . T$
$7.47= C \times 0.083 \times 300$
$C =0.3\, M$
$=0.3 \times 180\, gL ^{-1}$
$=54 \,gL ^{-1}$